In the Medieval part of the 4D school, you would possibly have come across the greetings needed in all 4 dimensions.
That's good. However, I think this quest is problematic.
If I forgot something that was made clear in 4D school, that's one thing. It is fair to expect players to know things that were made clear in MUD school (like that you say "May the force be with you" in the future)
On the other hand, if this is really just something that I might possibly
have picked up in 4D school, I don't think that it is a good idea for the first quest in quest academy to hang on it, at least, not without a clue to lead me back to 4D school to pick up this information.